Re: [PATCH v3 2/4] trace.c: print program 'git' when child_process.git_cmd is set

> We normally print full command line, including the program and its
> argument. When git_cmd is set, we have a special code path to run the
> right "git" program and child_process.argv[0] will not contain the
> program name anymore. As a result, we print just the command
> arguments.
> 
> I thought it was a regression when the code was refactored and git_cmd
> added, but apparently it's not. git_cmd mode was introduced before
> tracing was added in 8852f5d704 (run_command(): respect GIT_TRACE -
> 2008-07-07) so it's more like an oversight in 8852f5d704.
> 
> Fix it, print the program name "git" in git_cmd mode. It's nice to have
> now. But it will be more important later when we start to print env
> variables too, in shell syntax. The lack of a program name would look
> confusing then.